Dr. Lieberman is active in research, teaching, and patient care. His research has focused on using the Internet to expand access to psychosocial interventions. He developed a Web application for drinkers that incorporated a motivational intervention by providing assessment feedback, allowing the user to identify positive and negative consequences of substance use, and providing direct advice when indicated. This application was able to increase treatment interest in a hidden population of alcohol abusers who were not accessing traditional forms of care. Currently he is working on an open source Web application that makes daily mood charting easier to maintain, and helps users develop more regular social rhythms.
Dr. Lieberman has spoken on mood disorders and substance abuse to audiences at the Department of Health and Human Services, the Department of Commerce, and the Office of Drug and Alcohol Policy. He is a Fellow of the American Psychiatric Association, and his work has been recognized with the Caron Foundation Research Award, and the American Psychiatric Association's Nancy Roeske Award for Excellence in Medical Student Education. He has been multiply recognized as a Washingtonian magazine Top Doctor.